Question about 1998 Lincoln Navigator

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What's the egr valve code for a 98 Lincoln navigator

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Posted on Jan 02, 2017

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SOURCE: 1996 lincoln town car p0403 code

Yes that is cat efficiency code for the bank2 (drivers side cat). When the PCM runs the cat efficiency monitor it compares the switch rate of the front O2 sensor with the rear O2 sensor to determine the ratio. If it falls below a programmed limit this code will set. There are usually 2 things that causes this. First is a lazy front O2 sensor, if your front O2 sensors have not been replaced in a while I would try replacing them first.
2nd is a bad catalytic convertor. If replacing the front O2 sensor does not correct your problem you will unfortunately need to replace the cat.

Posted on Jan 29, 2009

  • 155 Answers

SOURCE: 2004 Lincoln navigator misfire on cylinder 8 error code p318

Replace the coil pack once more. I went through 2 new ones on my f150 on one cylinder. One worked, the other didn't (both new off the shelf). Condensation build up in the boot caused mine to misfire. Anytime you replace a coil pack, squirt a little silicone grease inside. This will prevent condensation from hitting your plug. Fords are notorius for this problem, especially if you live in a humid area. Also, make sure and clear the codes after you make the repair.

Posted on Jun 10, 2009

  • 1 Answer

SOURCE: Codes P0171, and P0174 bLean on a 98 Navigator. Any ideas?

mass air flow sensor is not the problem, I had the exact same problem and have done much research on this. Check the PVC rubber hoses, especially the elbows for cracks. You probably noticed your gas mileage has been horrible too. Hope this helps

Posted on Sep 16, 2009

  • 1959 Answers

SOURCE: lincoln navigator 98 I have a code p0171 bank1

P0171 - System Too Lean (Bank 1) indicates a bad reading from an O2 sensor or bad MAF sensor.
CausesA code P0171 may mean that one or more of the following has happened:

  • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
  • There could be a vacuum leak downstream of the MAF sensor.
Possible SolutionsPossible solutions include:
  • In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
  • Inspect all vacuum and PCV hoses, replace if necessary
  • Check for a dirty fuel filter and proper fuel pressure

Posted on Nov 03, 2009

  • 14 Answers

SOURCE: 2005 lincoln navigator 5.4 32 valves the engine

check the fuel cut off switch in the back on the left close to the back door

Posted on Jul 22, 2010

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1 Answer

Whats the egr valve code on a 98 Lincoln navigator thats 4wd

You have more than 1 problem. Sometimes EGR flow code is wrong because the paths under the throttle body are clogged and EGR is ok. Mystery is lack of heat which can affect engine controls. Could be simply thermostat or sensor for water temp stuck on hot. Stall out is from cold start cycle not working because of false heat sensing.

Dec 31, 2016 | 1998 Lincoln Navigator

1 Answer

What does code 1406 mean?

This is a problem in the EGR or EGR control solemoid. It is indicating the EGR valve is not in the proper position. It can be a stuck egr valve or lack of proper Egr vacuum pressure to position the valve.

Oct 17, 2015 | 2000 Lincoln Navigator

3 Answers

I have a 98 lincoln navigator I got the egg valve replaced and my check engine light came back on with the code p0401 what should I do next to fix the problem

TYPE: OBD PO401 & study the code

I think your best to have a professional use
the proper testing tools, to actually find a problem

You can throw parts at it for a long time, if you do not
understand the system your working on, or have no factory
service manuals or trouble charts to follow

I see you said you got a part replaced

So the shop failed to road test or look at data to confirm
the repair,too bad,that seems to be the problem the last 25 years

Oct 02, 2014 | 1998 Lincoln Navigator

1 Answer

Can't find the dpfe in 98 lincon navagator

Just follow the vacuum hose from
the egr valve to it

Sep 28, 2014 | 1998 Lincoln Navigator

1 Answer

98 navigator lincoln will not idle

I'm going to assume the check engine light is not on, otherwise you would have checked the computer for trouble codes by now.
The computer adjusts idle speed by controlling the air going into the throttle body by way of the idle air control valve. The valve could be faulty, or the throttle body could be dirty.

Dec 15, 2012 | 1998 Lincoln Navigator

1 Answer

How to replace a egr valve on a 2003 linclon navigator?

how do you change a egr valve on a 2003 navigator

Oct 11, 2010 | 2003 Lincoln Navigator

2 Answers

Code 2195 wont go away after replacing o2 sensors and fuel filter

Computer is seeing lean condition via o2 sensor. Most likely a vacuum leak check all hoses, ports,egr valve & dpfe sensor & egr solenoid & intake manifold.

Jun 07, 2010 | 2005 Lincoln Navigator

2 Answers

2000 Lincoln Navigator with rough idling and service engine light

i had the same trouble, there is a rubber boot under the cover on the top of the motor, it is coming from the egr valve, takes about 5 mins to repair and less than 5 dollars.

Jul 21, 2009 | 2003 Lincoln Navigator

4 Answers

Codes P0171, and P0174 bLean on a 98 Navigator. Any ideas?

mass air flow sensor is not the problem, I had the exact same problem and have done much research on this. Check the PVC rubber hoses, especially the elbows for cracks. You probably noticed your gas mileage has been horrible too. Hope this helps

May 28, 2009 | 2003 Lincoln Navigator

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